Age | Commit message (Collapse) | Author |
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As an opaque struct it has a chance to change its layout in the future
without breaking ABI compatibiliy.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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In all cases where metadata blocks are read, we can roughly (in some
cases even preciesly) say in what range those metadata blocks will be,
so it makes sense to throw an error if an attempt is made to wander
outside this range.
Furthermore, when reading from an uncompressed block, it is more reasonable
to check against the actual block bounds than to padd it with 0 bytes.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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We didn't allocate the ID table, so we don't need to free() it when
reading from disk fails.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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In most cases, we know exactely where the data that we want to read is
on disk, so instead of using read() on the squashfs (or lseek + read),
the code can in many places be cleaned up to use the pread wrapper
read_data_at instead.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Requires that config.h be included before other headers, since the macro
_FILE_OFFSET_BITS changes the definitions of things like 'struct stat'.
I chose to simply include it at the top of every C file and at
immediately after the double-inclusion guards of every header.
Signed-off-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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If read_retry fails to read the expected amount of data (EOF or otherwise),
it is almost always an error.
This commit renames read_retry to read_data and moves error handling
into the function, making a lot of error handling code redundant.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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In case the tables are not completely filled by reading from the
squashfs image.
Bug found using scan-build.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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The idea is to move various higher level helper functions there.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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